The producers in a food chain in an aquatic environment a...
The producers in a food chain in an aquatic environment are
birds
phytoplankton
zooplankton
fishes
Correct answer is B
No explanation has been provided for this answer.
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The structure labelled X is used by the organism in the same way as man uses his? ...
The period of inactivity seen in some animals during long period of heat or drought is ...
Which of the following is the medium of transporting nutrients within unicellular organisms? ...